发明名称 |
Electrical filter operating with acoustic waves |
摘要 |
A surface wave filter having an interdigital structure in which last active fingers of a first comb structure, which is to be connected to ground, extend as close as possible to a busbar of an opposite comb structure. Interference signals based on the discontinuity of the end of the interdigital structure are eliminated.
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申请公布号 |
US4673901(A) |
申请公布日期 |
1987.06.16 |
申请号 |
US19850788877 |
申请日期 |
1985.10.18 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
EHRMANN-FALKENAU, EKKEHARD;VEITH, RICHARD;TILL, WOLFGANG |
分类号 |
H03H9/145;H03H9/64;(IPC1-7):H03H9/64 |
主分类号 |
H03H9/145 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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